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20-H rule modeling and measurements

H.W. Shim, T.H. Hubing
2001 IEEE EMC International Symposium. Symposium Record. International Symposium on Electromagnetic Compatibility (Cat. No.01CH37161)  

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The 20-H rule is a printed circuit board layout guideline. On boards with power and ground planes, the fringing field at the edges of the board is contained by backing the edge of the power plane away from the edge of the board by a distance equal to 20 times the separation distance between the planes. In this study, test boards were built and measured with and without implementing the 20-H rule. The measured results are compared to numerical models . The results of this study show that,
more » ... h the near fields are more contained, the radiation from a board implementing the 20-H rule is actually slightly higher than the radiation from boards with a traditional design.
doi:10.1109/isemc.2001.950514 fatcat:ucegqatc75dqnjnywyfx3k7x5y
Citation

H.W. Shim, T.H. Hubing. "20-H rule modeling and measurements." 2001 IEEE EMC International Symposium. Symposium Record. International Symposium on Electromagnetic Compatibility (Cat. No.01CH37161)